metachronyn.

Brit.

/mᵻˈtakrəni/,

/mɛˈtakrəni/, U.S.

/mɛˈtækrəni/

Origin: A borrowing from German. Etymon: German Metachronie.

Etymology: < German Metachronie (M. Verworn 1891, in Arch. f. die gesamte Physiol. 48 164) < ancient Greek μετα- meta- prefix + χρόνος (see chronic adj.) + German -ie -y suffix³. Compare earlier metachronism n. 2.

Biology.

Occurrence in sequence (as opposed to in synchrony); spec. the orderly sequential movement of cilia in a progressive wave.

ΚΠ

1964 Abstr. Biophysical Soc. 8th Ann. Meeting Abstract no. FE13 (title) A hydrodynamic mechanism for ciliary metachrony.

1965 Proc. Royal Soc. 1964–5 B. 161 338 It is perhaps unfair to ask whether inertia in the sense propounded by Pearsall could explain..possible metachrony of zone boundaries.

1972 Jrnl. Exper. Biol. 57 239 (title) Ciliary activity and the origin of metachrony in Paramecium: effects of increased viscosity.

1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) ii. 21/2 The co-ordination of cilia in metachrony is usually considered to be achieved through viscomechanical coupling.

1993 Jrnl. Exper. Biol. 265 258 When the first YSL [= yolk syncytial layer] nuclei cease dividing, all other YSL nuclei cease dividing with them. These YSL mitoses occur in metachrony.

This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022).

单词	metachrony
释义	metachronyn. Brit. /mᵻˈtakrəni/, /mɛˈtakrəni/, U.S. /mɛˈtækrəni/ Origin: A borrowing from German. Etymon: German Metachronie. Etymology: < German Metachronie (M. Verworn 1891, in Arch. f. die gesamte Physiol. 48 164) < ancient Greek μετα- meta- prefix + χρόνος (see chronic adj.) + German -ie -y suffix³. Compare earlier metachronism n. 2. Biology. Occurrence in sequence (as opposed to in synchrony); spec. the orderly sequential movement of cilia in a progressive wave. ΚΠ 1964 Abstr. Biophysical Soc. 8th Ann. Meeting Abstract no. FE13 (title) A hydrodynamic mechanism for ciliary metachrony. 1965 Proc. Royal Soc. 1964–5 B. 161 338 It is perhaps unfair to ask whether inertia in the sense propounded by Pearsall could explain..possible metachrony of zone boundaries. 1972 Jrnl. Exper. Biol. 57 239 (title) Ciliary activity and the origin of metachrony in Paramecium: effects of increased viscosity. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) ii. 21/2 The co-ordination of cilia in metachrony is usually considered to be achieved through viscomechanical coupling. 1993 Jrnl. Exper. Biol. 265 258 When the first YSL [= yolk syncytial layer] nuclei cease dividing, all other YSL nuclei cease dividing with them. These YSL mitoses occur in metachrony. This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022). < n.1964
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